This camera has several revisions (or fakes). One camera is recognized in the system as a UVC Camera, the other as a V380 FHD Camera. There are also external differences in size, the shape of the mount (one has an oval, the other has a rectangle with rounded edges), as well as in the camera activity icons. The sound quality from the factory for both cameras is the worst I've come across. Before disassembling, I tried to increase the microphone hole - it did not help a single gram. After disassembling the camera, tests showed that the microphone records perfectly when disassembled. The camera assemblers saved money on moving the microphone from the board to the front panel of the camera body, although there is room for it. After improvements (moving the microphone to the front panel), the sound became at the level of expensive webcams. I also twisted the lens a little to "be in focus". I recommend it for those who want to tinker with it.
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